Water hardness in Val-de-Ruz
28.8 °fH very hard
Tap water in Val-de-Ruz is very hard: 28.8 °fH (288 mg/L · 16.8 gpg · 16.1 °dH).
Source: Viteos SA (via SVGW trinkwasser.ch) (2024) · data checked 2026-10-21
In the Neuchâtel Jura, the water comes mostly from springs in karstified Jura limestone, supplemented by water from Lake Neuchâtel. Viteos SA reports a hardness of 288.0 mg/L CaCO₃. Scale forms quickly on heating elements and fittings, so a softener or strict descaling routine is worth considering.
In der Schweiz wird meist in °fH angegeben (1 °fH = 0,56 °dH).
Water data
| Total hardness | 28.8 °fH |
|---|---|
| Utility | Viteos SA |
How Val-de-Ruz compares
- Tap water in Val-de-Ruz is 8 % harder than the median of the 650 cities we track in Switzerland (26.7 °fH).
- By hardness it ranks 273 of 650 in Switzerland (1 = hardest); 58 % of these cities have softer water.
- In NE it is number 2 of 7 cities; the regional median is 26.8 °fH.
- Nearest city with clearly softer water: La Chaux-de-Fonds, 7 km away (19.9 °fH).
- Nearest city with clearly harder water: Prez, 30 km away (36.7 °fH).
Ranking of the hardest and softest water in Switzerland →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Val-de-Ruz
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 16 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S2 |
| LG | H3 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Val-de-Ruz water hard or soft?
It is very hard: 288 mg/L as CaCO₃ (16.8 gpg, 16.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Val-de-Ruz safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. In der Schweiz wird meist in °fH angegeben (1 °fH = 0,56 °dH).
How many grains per gallon is Val-de-Ruz water?
16.8 gpg, equal to 16.1 °dH, 28.8 °fH or 288 mg/L calcium carbonate.
What dishwasher salt setting should I use in Val-de-Ruz?
For 288 mg/L (16.1 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Val-de-Ruz?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Viteos SA (via SVGW trinkwasser.ch) (2024). Method: figure published by the water supplier. Viteos SA (via SVGW trinkwasser.ch) · Outdated figure? Tell us